"precámara" meaning in Spanish

{
  "forms": [
    {
      "form": "precámaras",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "precámara f (plural precámaras)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "pre‧cá‧ma‧ra"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "prechamber"
      ],
      "id": "en-precámara-es-noun-kBya4gUz",
      "links": [
        [
          "prechamber",
          "prechamber"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pɾeˈkamaɾa/"
    },
    {
      "ipa": "[pɾeˈka.ma.ɾa]"
    },
    {
      "rhymes": "-amaɾa"
    }
  ],
  "word": "precámara"
}

{
  "forms": [
    {
      "form": "precámaras",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "precámara f (plural precámaras)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "pre‧cá‧ma‧ra"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Rhymes:Spanish/amaɾa",
        "Rhymes:Spanish/amaɾa/4 syllables",
        "Spanish 4-syllable words",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish feminine nouns",
        "Spanish lemmas",
        "Spanish nouns",
        "Spanish nouns with red links in their headword lines",
        "Spanish terms with IPA pronunciation"
      ],
      "glosses": [
        "prechamber"
      ],
      "links": [
        [
          "prechamber",
          "prechamber"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/pɾeˈkamaɾa/"
    },
    {
      "ipa": "[pɾeˈka.ma.ɾa]"
    },
    {
      "rhymes": "-amaɾa"
    }
  ],
  "word": "precámara"
}